Without data in textfield and datagrid if i click add or delete button it should through msgbox

Question

hi friends ,,
                 i am new to flex i am doing a application in flex4,i need help from this, i have two text inputs and one datagrid, and one add button and delete button.
my requirement is without data if i click add or delete it should through error box how to do that,
In 3 condtition it should  thorugh error or msg box;
conditions are,
                  1.both textinputs and datagrid----> click (add or delete)--->error or msg box
                   2.both textinputs dont have value and datagrid have values----> click (add or delete)--->error or msg box
                   3..both textinputs  have value and datagrid  dont have values----> click (add or delete)--->error or msg box
any suggession or snippet code are welcome
Thanks in advance,
B.venkatesan.

Answer 1

Hi,
Please try following code:
<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="
library://ns.adobe.com/flex/spark" xmlns:mx="
library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
 <fx:Declarations>
 <!-- Place non-visual elements (e.g., services, value objects) here -->
 </fx:Declarations>
 <fx:Script>
<![CDATA[
 import mx.collections.ArrayCollection; 
import mx.controls.Alert; 
public function check():void{ 
if(input1.text=="" || input2.text=="" || Dg1.dataProvider==""){
Alert.show(
"Enter the text boxes and DataGrid.");}
else{Alert.show(
"Do not Enter the text boxes DataGrid."); 
]]>
</fx:Script>
 <s:TextInput x="77" y="107" id="input1"/>
 <s:TextInput x="254" y="107" id="input2"/>
 <mx:DataGrid x="80" y="150" id="Dg1">
 <mx:ArrayCollection>
 </mx:ArrayCollection>
 </mx:DataGrid>
 <s:Button x="95" y="329" label="Add" click="check()" />
 <s:Button x="290" y="329" label="Delete" click="check()"/></s:Application>
I am keeping Arraycollection empty for example.Please try when you provide data to Arraycollection.
Thanks and Regards,
Vibhuti Gosavi | [email protected] | www.infocepts.com